| 汽车发动机悬置用天然橡胶胶料配方的研究 |
| Research on NR Compound Formulas for Automotive Engine Suspension |
| 投稿时间：2023-10-17 修订日期：2023-10-17 |
| DOI：10.12136/j.issn.1000-890X.2024.10.0754 |
| 中文关键词: 发动机悬置 天然橡胶 动静刚度比 耐热空气老化性能 |
| 英文关键词: automobile engine mounting,NR,dynamic-to-static stiffness ratio,Hot-air aging resistance |
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| 中文摘要: |
| 对汽车发动机悬置用天然橡胶（NR）胶料配方进行研究。结果表明：采用半有效硫化体系（硫黄/促进剂用量比为1.7/1.5）、炭黑N330/炭黑N774/白炭黑（用量比11/18/5）补强体系、防老剂4020/防老剂RD/防老剂MB/微晶石蜡（用量比2/1/1/1）防护体系的NR胶料的动静刚度比较小，耐热空气老化性能较好；硫化温度过高和硫化时间过长易导致NR胶料出现硫化返原，使其动静刚度比增大，耐热空气老化性能下降。 |
| 英文摘要: |
| Research on the formula of natural rubber（NR） compound for automotive engine suspension. The results showed that the NR compound with semi effective vulcanization system （sulfur/accelerator ratio of 1. 7/1. 5），carbon black N330/carbon black 774/white carbon black （ratio of 11/18/5） reinforcement system，and anti-aging agent 4020/anti-aging agent RD/anti-aging agent MB/microcrystalline paraffin （ratio
of 2/1/1） protection system had lower dynamic and static stiffness and better heat resistance to air aging；excessive vulcanization temperature and time can easily cause NR rubber to undergo vulcanization and return to its original state，resulting in an increase in its dynamic to static stiffness ratio and a decrease in its heat resistance to air aging. |
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